Automatic blocking attachment for strip-rolls.



No. 880,434. PATBNTEDVFEB. 25, 1908. W. A. WOOD.

AUTOMATIC BLOCKING ATTACHMENT FOR STRIPROLLS.

APPLICATION FILED NOV. 3, 1905.

2 SHEETS-SHEET 1 WITNESSES:

No. 880,434. PATENTED FEB. 25, 1908. W. A. WOOD. AUTOMATIC BLOCKING ATTACHMENT FOR STRIP ROLLS APPLICATION FILED NOV. 8, 1905.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFIC].

WILLIAM ALEXANDER WOOD, OF ANSONIA, CONNECTICUT, ASSIGNOR TO THE COE BRASS MANUFACTURING COMPANY, A CORPORATION OF CONNECTICUT.

AUTOMATIC BLOCKING ATTACI-IMENT' FOR STRIP-ROLLS.

To all whom it may concern:

Be it known that 1, WILLIAM ALEXANDER WOOD, a citizen of the United States, residing at Ansonia, county of New Haven, State of'Connecticut, have invented certain new and useful Improvements in an Automatic Blocking Attachment for Strip Rolls, of which the following is a specification.

My invention consists in an automatic blocking attachment adapted to be used in connection with the rolls of a strip mill, and which has for its purpose to automatically guide the strip after it passes the rolls of the mill onto and around the block.

The object of my invention is two-fold:

First, to do away with the employment of hand blocking, which is exceedingly dangerous to the workman and has resulted in frequent accidents; and second, to increase the capacity of the strip mill, by permitting it to be run at a higher speed.

Heretofore, blocking has been accomplished by hand. This has been done as shown in Fi ure 9, of the drawings, where the workman p aces one hand on the top of the strip, pressing it in contact with the block, While with the other hand he guides the strip around the block, until the end of the strip is can ht under the horizontal moving portion of t e strip. Unless the workman 1s expert he is very apt to have his arm caught between the block and the strip, which in many cases has resulted in the loss of an arm or serious injury.

My invention, considered broadly, aims to accomplish automatic blocking, and the drawings which accompany this specification show three diiferent constructions, any or all of which may be employed.

Referring to the drawings: Figs. 1, 2, 3, 4 and 5 show one construction, and in these figures-Figure 1 is a plan view. Fig. 2 a section on the line 22 of Fig. '1. Fig. 3 a section on the line 33 of Fig. 1. Fig. 4 a section on the line 44 of Fig. 8, and Fig. 5 a section on the line 55 of Fig. 3. Figs. 6 and 7 show a different construction, in which Fig. 6 is a plan view, and Fig. 7 a section on the line 77 of Fig. 6. Fig. 8 shows a third construction, as a side elevation of a hand device. Fig. 9 is a section showing the old method of hand blocking.

The general operation of the three forms of devices shown is as follows: The stri A is fed between the rolls B, C, of the mil, and

I Specification of Letters Patent. Application filed November 8.1905. semi No. 286.385.

Patented Feb. 25, 1908.

. towards the block D, which block is removable from a shaft E, as is common in all strip mills. The rolls B, O, and the block D, are of the ordinary construction. Just before reaching the block D, the strip is fed into the automatic blocking attachment. This attachment guides the strip to the top of the block and around the block, untilthe end of the strip is caught between the bottom of the advancing strip and the top of the block. As soon as the strip is caught, as described, the blocking attachment is opened, or, if constructed as shown in the device in Fig. 8, withdrawn. When the strip has been fully wound upon the block, the block and strip isremoved and a new block substituted.

It will be seen from the above description that no hand labor is required, and as the blocking attachment can be immediately thrown into position when a new block is placed upon the mill, the speed of the mill may be very materially increased, thereby increasing its capacity.

Referring now to the features of construction of the different forms of blocking attachment described. Arranged in front of the rolls B, O, is a guide table 10, suitably supported. In Fig. 3 this guide table is shown as composed of three parts, t. e., the

plate 11, which is fixed, the plate 12, near to the rolls, and the plate 13, near to the block. The plate 12 is pivotally mounted at 14, and its forward end 15 presses u on and is maintained in contact with the ower roll C, by means of the spring 16 and bolt 17 Mount ed on a universal bearing 18, carried in standard l9 projecting upward from the plate 11, is a plate 20, having its forward end 21 pressed in contact with the roll B, by means of the pin 22 and spring 23. pressing the plates 12, 20 in contact with the rolls 0, B, is to insure that the strip will pass between the guides and not follow the periphery of either of the rolls C or B. The

plate 13 near tothe block, is pivoted to the 100 overlaying the plate 13 and the spring 25 105 thereon, is a spring plate 26. Situated over the plates 11, 12 is an arm 27, pivoted at 28, and on the forward end of this arm is mounted a spring plate 29.

Mounted in bearings in standards 30, pro- 110 The object of ,jecting upward from the plate 11, is a roll 31.

The spring plate 29 on the end of the arm 27 bears, when raised, upon the under surface of the roll 31. The purpose of the roll 31 and the spring plate 29 is to guide the strip unl 31 in order that the strip shall.

der the ro move in a horizontal direction from the rolls 13,0, to the roll 31, and thence to the surface of the block D.

The construction so far as described, is applicable to the three forms of blocking attachment illustrated in the drawings. I may, however, as shown in Fig. 7, omit the plate 13, in which case the spring plate 26 is carried forward and bridgesthe space between the plate 11 and the block D.

on its under-surface the p ate 36, shaped toconform to the curvature of the top of the block. Mounted in bearings situated in the angle of the arms 34, is a roll 37, which, when the parts are in the position shown in Fig. 3, i. 6., with the parts closed, bears upon the surface of the strip wound upon the block D. The arms 34 are secured to the shaft 33, and

also secured to this" shaft is the segmental gear 38. This gear is in mesh with a similar segmental gear 39, on shaft 40. Secured to shaft 40 are the arms 41,.Fig. 5, and

connected to the forward end of these arms is a concave plate 42, shaped to conform to the curvature ofthe bottom of the block. On the forward endof-thisplate-is a bail 43, which is adapted to co actwith' the latch 44, pivoted in an arm 45,";extending,

from the portion 35 ofthe arms 34'. ."Pro .jecting upwards from the portion 35 of. the

arms 34 is a lever arm 46. v

It will now be understood from the description so far as given, that when the latch 44 is released from the bail 43, and the lever arm 46 pushed backward, the parts will be moved. tothe position shown in' Fig. 2 that is, the movement thus imparted to the shaft 33 will be transmitted through the interposed gears to the shaft 40 and thence to the arms 41 and plate 42.

In order to guide the strip to the top of the 1 block whendpassing under the roll 37, the pivoted gui e p plate is pivote on the rod 48, situated-in earings in the arms 41. Inorder to guide the strip as it passes around the block u ward, and under the strip passing on to t e top of the block, I provide the spring plate 49, which is secured at its lower end to the late 47 is provided. This ptattf 42 and follows the curvature of the oc i.

The variousother details of construction which have not been referred to will b readily understood from an inspection of th drawings.

Referring now to Fig. 7: There is shown as surrounding the block 1), two sets of rolls, 3t), 51, connected by links 52. The upper set of rolls has its first link pivotally connected at one end 53 to the guide table 10,- and its last link carries a pin 54. The lower set of rolls has its first link pivotally connected to abell crank 55, pivoted at 53 to the guide table 10. The short arm of the bell crank, 57, is connected through a link 58 to a foot treadle 59. Projecting also from the first link is an arm 60, shaped to conform to the curvature of the block 1). The last link of the lower series of rolls has pivoted to it, at 61, a latch 62, adapted to co-act with the pin 54. It also has connected to it a handle 63. 'The two series of rolls serve to guide the strip onto and around the block D, and the foot treadle- 59 to tighten the chain of rolls around the block. When the block is to be removed, the latch is opened and the two setsof rolls thrown out of engagement with the block.

The third guiding device shownin Fig. 8. consists simply in a strip of resilient metal 64, bent to the shape shown, and rovided with a handle 65. In using this device it is slipped around the block and held in position by'the workman.

;,The three devices described, as previously stated,'all serve the same purpose. Two of them are automatic and the third requires human aid. I have illustrated these three forms to bring out the fact that apparatus I different in construction, can be employed to accomplish the same result. p

I wish it understood that I do not limit myself in anywise to the special features of construction of the devices illustrated. The construction shown in Figs, 1 to 5 is the best of which I am now aware, as such device is wholly automatic and may be depended upon.

Having thus described my invention, 1 claim:

1. The combination of the revolvin block of a strip mill, meansv for directing an guiding the strip around the block as it comes from the mill, and means whereby the di recting and guiding means may be withdrawn'from around. the block. v

2. vThe combination of the revolving block of a strip mill, automatic means for direct' ing and guiding the strip around the-block as; it comes from the mill, and manually strip passinlg I parts for directing and guiding the stri around the block as it comes fromtlie mil and means for simultaneously separating the parts of the directing and guiding means and moving them clear of the block.

4. The combination of the revolving block of a strip mill, and means for directing the through the mill to the surface of the bloc and guiding the strip around the surface of the block, said means comprising separable co-acting members which combine to partially encircle the block.

5. Incombination 'With the revolving rolls and block of a strip mill, at directing table situated between the rolls and the block, and a removable guiding device for the strip arrangedaroundthe block.

6. In combination with the revolving rolls and block of a strip mill, a ide table situated between the rolls and lock, said guide table having its end at the rolls maintained in elastic contact with the surface of the rolls, and a guiding device surrounding the block.

7. In combination with the revolving rolls and block of a strip mill, a directin table, elastic bridging means interpose between said table and block, means for directing and guiding the strip as it passes from the table to and around the block, said last mentioned means being arranged to exert a variable clamping pressure aroundthe block, and means for moving'said directing and guiding means clear of the block.

8. In combination with the revolving rolls and block of a strip mill, a guide table in elastic contact with said rolls, and a spring device interposed between said guide table and revolving block.

9. In-combination with a revolving block of a stri mill, means for guiding the strip to the bloc and means for guiding the strip around the block, said last named means consisting of a separable device inclosing l v 'f I; the periphery of the block when inposi ion but separated from the block when out of position.

10. In combination with a .revolving' block of a strip mill, means for 'uiding the strip to the block, and means for guldin the strip around the block, said last name means consisting of two concave plates.

carried in pivoted arms, with means for locking said plates in the closed position around the block. 11 In combination with a revolving block of a strip mill, means for guiding the strip to the block, and means for guiding the strip around the block, said last named ineans consisting of two concave plates carried in pivoted arms mounted on I shafts, means for locking said concave plates around the block, and means whereby when one of said plates is lifted away from the block the 65 other plate will make a corresponding movement.

12. In combination with a revolving-- allow free access to the block-when separated. p In testimony whereof, I afiix my signature,in the presence of two witnesses.

' WILLIAM ALEXANDER'WOOD. Witnesses: y

W. H. PUM'PHREY, C. DOUGLASS GREEN. 

